Back In Time vs ZnapZend
A side-by-side comparison of two self-hosted backup & recovery options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | Back In Time | ZnapZend |
|---|---|---|
| Deploy effort | Read-the-docs project | Read-the-docs project |
| Health score | 83 · Excellent | 76 · Good |
| Category | Backup & Recovery | Backup & Recovery |
| License | GPL-2.0 | GPL-3.0 |
| Language | Python | Perl |
| Setup difficulty | Easy | Hard |
| Min. RAM | 128 MB | 128 MB |
| Deployment | binary | bare-metal |
| GitHub stars | ★ 2,669 | ★ 669 |
| First released | 2008 | 2014 |
| Replaces | Time Machine | Time Machine |
What are Back In Time and ZnapZend?
Back In Time
Back In Time is a simple backup tool for Linux inspired by Time Machine and rsnapshot. It takes snapshots of specified folders using rsync and hard links to save disk space.
- Time Machine-style snapshots
- Hard-link deduplication
- GUI and command-line modes
ZnapZend
ZnapZend is a ZFS backup tool that automates the creation, retention, and replication of ZFS snapshots. It runs as a daemon and supports compressed transfers over SSH.
- Automated ZFS snapshot retention
- SSH replication
- Runs as a background daemon
Back In Time vs ZnapZend: key differences
Back In Time is written in Python, while ZnapZend is built with Perl. Licensing differs — GPL-2.0 for Back In Time versus GPL-3.0 for ZnapZend. Back In Time is the more established project (first released 2008), while ZnapZend arrived in 2014. Back In Time has the considerably larger community, at 2,669 GitHub stars versus 669.
Why pick each one
Choose Back In Time if…
- Released under the GPL-2.0 license
- Easy to set up — beginner-friendly
- Active community (2.7k GitHub stars)
- Written in Python
Choose ZnapZend if…
- Released under the GPL-3.0 license
- Written in Perl
- Tiny footprint — runs in 128 MB RAM
Frequently asked questions
Is Back In Time or ZnapZend better?
Back In Time is the stronger all-round pick: it has both the larger community and the simpler easy setup. Consider ZnapZend if its specific feature set fits your needs better.
Are Back In Time and ZnapZend free and open-source?
Yes. Back In Time is licensed under GPL-2.0 and ZnapZend under GPL-3.0. Both can be self-hosted at no software cost.
Can I run Back In Time and ZnapZend with Docker?
Back In Time: check the project docs for container support. ZnapZend: check the project docs for container support.